EGR Control Solenoid: Description and Operation

EGR System Diagram:

PURPOSE
EGR vacuum and vent solenoid valves are PCME controlled for regulation of the exhaust gas recirculation (EGR) system.

LOCATION
Below intake plenum near center of engine.

OPERATION

EGR System Operating Conditions:

These are duty valves, enabling the PCME to make continuous EGR adjustments as required under a wide range of operating conditions. To improve driveability, EGR operation is canceled below coolant temperature of 131°F (55°C). Warm engine operation is as described on the image chart.